I will recommend you compare rates with a couple of lenders to make sure you get the best rate and terms possible even though hard money comes with higher rates but usually for not more than a year. 

Look for local real estate investor meetups to meet people who are possibly willing to share their experience and what tips they may share with you.

Let's assume it's a full bath.The smallest possible full bath can be shoehorned into about a 4.5 x 5-foot floor area, usually what people consider a small full bath is 5 x 10 feet, with a tub and shower surround.

BiggerPockets also has a calculator you can use to analyze deals and I highly recommend you start this as soon as possible, even if you are not ready to buy.

The home we live in now we plan on renting on airbnb after living here for 1 year and moving again to another house possibly.

Is it too late to capture the tax savings from the first house, or are you able to do this by possibly having it assessed and using depreciation?

Personally, I think there is a lot of hype around wholesaling as a beginner because it has the "possibility" of doing it with low money, but talking from experience wholesaling is hard and is a TRUE grind when you are trying to get going.Like anything else, I think the fundamentals are not that difficult, but you have to be willing to stay with it for months and months with potentially no deals because it's the consistent follow-up for months that starts generating deal flow. 

is it even possible ?

im more looking to make sure my calculations are as close to spot on as possible for our local market.

BiggerPockets also has a calculator you can use to analyze deals and I highly recommend you start this as soon as possible, even if you are not ready to buy.